<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>cookie</title>
    <script type="text/javascript">
        function goBack()
        {
            window.history.back()
        }
    </script>
</head>
<body>

<input type="button" value="Back" onclick="goBack()" />

</body>
</html>